Have about a gallon too much oil in the 8v92. Don't ask how that happened. Which is more dangerous - ignoring it, or climbing underneath and loosening the oil filter to drain off the excess? Thanks for the usual fine suggestions!Mike in GA

Logged

Past President, Southeast Bus Nuts. Busin' for more than 14 years in a 1985 MC 96a3 with DD 8v92 and a 5 speed Allison c/r.

Mike, do you have (or can you borrow from a friend) a vacuum oil extractor like this? I bought it because it works really well on my VW diesel Jetta but after I owned it, I found that it was useful for many things. (PS This is way overpriced but I wanted a photo and it was the first one on Google.)

Since the oil in the pan is not under any pressure, it is easy to loosen the drain plug and let a gallon out. If you should happen to loosen it too much and the plug comes out, you can just screw it back in. When I bought my Fumato drain valve, it installed it just that way with barely a cup of spillage, and 40 weight oil is a wonderful moisturizer.

Yes, Fumotos are great. They make jobs like this a breeze. Just make sure it would not be the lowest thing above the ground! Otherwise, hand-cranked transfer pumps are good for moving liquids, and there are also drill-powered versions that are quicker.

Thanks everyone. Spent the middle afternoon under the bus, and the idea of loosening the oil drain plug worked great - didn't even drop it. Took a gallon out, and the oil dipstick is now on the money. Being the tightwad that I am, I even captured the barely used oil for use in topping off the crankcase in the year to come. The idea of a Fumoto drain valve is interesting. Thanks again.Mike in GA

Logged

Past President, Southeast Bus Nuts. Busin' for more than 14 years in a 1985 MC 96a3 with DD 8v92 and a 5 speed Allison c/r.